Robert mieiile



N0. 62|,839. Patented Mar. 28, I899. R. MIEHLE.

MACHINE FOR CUTTING PAPER.

2 Sheets8heet I.

(Application filed Oct. 25, 1895.) (No Model.)

No, 62l,839. Patented Mar. 21;, 1899.

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MACHINE FOB CUTTING PAPER.

(Applicatipn filed. Oct. 25, 1895.)

6N0 Model.)

2 Sheets-Sheet 2.'

Nirni) TATES I? ATENT i rrrcn.

ROBERT MIEHLE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE MIEHLE PRINT- ING PRESS AND MANUFACTURING OOMPANY, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 621,839, dated March 28, 1899.

Application filed October 25,1895. Serial No. 566,849. No model.)

To all whom it may concern:

Be it known that I, ROBERT MIEHLE, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Paper-Gutters for Cylinder-Presses; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to means for cutting or slitting paper as it is delivered from the impression-cylinder of a cylinder printingpress; and it consists in the matters herein set forth, and particularly pointed outin the appended claims.

In the accompanying drawings, Figure 1 is a side elevation of a portion of a printingpress with my improvement applied thereto. Fig. 2 is a top plan view thereof. Fig. 3 is an enlarged sectional detail of the paper cutting and supporting roller, taken on line 3 3 of Fig. 4.. Fig. 4 is a section on line 4 4. of

Fig. 2. Fig. 5 is a section on line 5 5 of Fig. 2.

In said drawings, A designates the frame of the press, and B the impression-cylinder, which is supported in suitable journal-bearings A of said frame A.

Care stripper-fingers secured upon a transverse bar or shaft A of the frame and resting with their points in such close proximity to the surface of the cylinder B as to insure the deflection of the sheet F from the cylinder to the fingers as soon as the forward edge of the paper reaches the points of the fingers. Said fingers C are sleeved at their inner ends to fit on the bar A and are each pro vided with a set-screw o, by means of which they are securely clamped in any adjusted position desired.

D are fly-fingers of any usual -or suitable pattern, which are pivotally mounted between standards A of the frame A a considable distance in front of the bar A and normally rest at their free extremities upon a transverse bar A located immediately in front of said bar A Any suitable mechanism (not herein shown) may be employed to oscillate the fly-fingers D and deliver the freshly-printed sheet at predetermined intervals in a familiar manner. Y

E designates a rotary shaft, which forms the tape-roll shaft of the press and is located beneath the stripping-fingers 0, between the cylinder B and the bar A said shaft being provided with a plurality of annular collars E and cutting-rolls E Fig. 3, which project upwardly between the fingers D and act as feed-rolls for advancing the sheets of paper F.

G is a second rotary shaft arranged above the shaft E and provided with annular collars G and G which normally rest upon the collars E and cutting-rolls E respectively, and cooperate therewith in feeding the paper F along between them. Said shaft is journaled in a rigid oscillating frame, consisting of radial arms provided with bearings for said shaft G and an oscillatory transverse bar or shaft H, to which said arms are rigidly attached. Said shaft H is pivotally mounted at its ends in the machine-frame A, some distance above and behind the shaft E, so that said frame, with the shaft G, may be swung upwardly away from said shaft E.

The arms H are provided at their inner ends with integral sleeves h, which embrace the bar H and are rigidly secured to said bar by dowel-pins h, said bar H thus forming a rigid connection between said arms. Suitable handles H projecting from the free ends of the arms H, afford convenient means by which the shaft G may be swung upwardly about the pivotal bar H, and a transverse brace rod A of the frame, located above and at the rear of the bar H, serves as a stop to limit such movement. Said rod is so placed that the shaft G before thus being brought to rest in its upper position will have been carried rear-wardly over its pivotal center, and consequently have no tendency to drop back until again swung forward over the shaft H.

The cutting or severing of the sheet F is accomplished by a circular knife or cutter G located on the middle roll G of the shaft G G consists in this instance of two sections 9 and g, between which the annular knife G is clamped by screws or bolts g said knife being made of greater diameter than the sections g 9, so as to project from between said sections throughout its periphery. The sharpened edge of the circular knife G engages or overlaps the side face of the under roll E and the sheet F as it passes between the rolls E and G is severed by the knife as the latter enters said groove 6. The friction-surface of the roll G is formed by two annular bands 9 of rubber or similar material, located in close proximity to any on the opposite sides of the knife G Said bands serve not only to afford a sufficient grip on the paper F to feed the same along successfully, but also to prevent the paper from sliding endwise and being crimped into the groove 0 by the knife G instead of being severed by the latter. The end rolls G of the shaft G are also provided with similar friction-bands 9 which operate in a similar manner to hold the paper firmly against the lower roll E and prevent sidewise movement of thesheet.

The lower shaft E is positively driven by means of a driving-pinion I, which intermeshes with a pinion E on the end of said shaft E. The driving-pinion I is herein shown as rigidly secured to a rotary stub-shaft I, that is conveniently journaled in a bearinglug a on the frame A, and is provided at its extremity with a rigidly-attached pinion 1 which intermeshes with the driving-gear B of the impression-cylinder B. The upper shaft G is also positively driven when in its lowermost or operative position by means of an end pinion G which intermeshes with the pinion E of the shaft E. Vhen the shaft G is swung upwardly and rearwardly about the bar H, however, the pinion G" is Withdrawn from the pinion E and the shaft ceases to rotate until again dropped into operative position. Said shaft and the cutting-blade carried thereby may thus be swung into or out of operation at any time without stopping the press or interfering with its operation in any other respect. Short lugs h projecting from the upper sides of the arms H near the free ends thereof, are in this instance provided to strike the stop-rod A and support the shaft G at such a distance from the rod as to prevent the knife E from being dulled by contact therewith. The lowermost position of the shaft G is adj ustably determined by adjustable stops h, which in this instance consist of screw-bolts inserted in the under sides of the arms H, near the outer ends thereof, and provided with set-nuts lbs. The heads of said stop-bolts are arranged to strike the subjacent upper surface of the side frames A of the press and by variously adjusting said bolts the shaft G may obviously be limited to approach the shaft E more or less closely, as may be desired. Normally, however, the weight of the shaft G and rolls G and G when in operative position will rest upon the collars and rolls E E of the shaft E and serve as a constant force by which the paper will be yieldingly held between said rolls, the stops 71, serving merely to receive the shock when the shaft G is dropped so suddenly as to render the collars and rolls E E and G G liable to come in contact with harmful force were the stops omitted.

As herein shown, provision is made forcutting each sheet F in only a single place, and to this end but one pair of cutting-rolls G E isprovided,although additional pairs of similar cutting-rolls may obviously be provided, if desired. The plain feed-rolls E and G may be as numerous as found convenient or necessary to secure the proper support and feeding of the sheet and are distributed at suitable intervals throughout the entire length of the shafts E and G. Each pair of rolls is, furthermore, made wider than its annular strip g and the free ends of the lower rolls E not engaged by said friction-strips serve to support the'rear ends of the usual traveling tapes J, which carry the sheet F forward upon the fly-fingers D, the front ends of the tapes being supported in the usual mannerby aroller (not herein illustrated) mounted between the standards A of the machineframe.

I claim as my invention-"- 1. The combination with the impressioncylinder and sheet-delivery devices embracing a tape-roll shaft adjacent to the impression-cylinder, of a papercutting device comprising an upper shaft mounted upon the press-frame above the tape-roll shaft, an oscillatory frame pivoted to the machineframe and in which said upper shaftis journaled, opposing feeding-rollers mounted on the said shafts and rotary cutters also mounted on said shafts.

2. The combination with the impressioncylinder and sheet-delivery devices embracing a tape-roll shaft adjacent to the impression-cylinder, of a paper-cutting device comprising an upper shaft mounted upon the press-frame above the tape-roll shaft, an oscillatory frame pivoted to the machineframe and in which said upper shaft is journaled, opposing feeding-rollers mounted on the said shafts, rotary cutters also mounted on said shafts, gears connecting said taperoll shaft with a gear-wheel on the impression-cylinder shaft, and intermeshing gears on the said upper and tape-roll shafts for driving the upper from the lower one.

3. The combination with the impressioncylinder and sheet-delivery devices embracing a tape-roll shaft adjacent to the impression-cylinder, of a paper-cutting device comprising an upper shaft mounted upon the press-frame above the tape-roll shaft, means for connecting or disconnecting the cutting device without stopping the said impressioncylinder consisting of an oscillatory frame consisting of two radial arms located at opposite sides of the machine and a bar to which said arms are rigidly attached and which is pi voted on the press-frame, said arms being provided With bearings for the upper shaft, feed-rollers mounted on the upper and tape r011 shafts, and rotary cutters also mounted on said shafts, said arms being provided with handles by Which the frame may be actuated from either side of the press.

In testimony that I claim the foregoing as myinvention I affix my signature, in presence 10 of two witnesses, this 16th day of October, A. D. 1895.

ROBERT MIEHLE.

\Vitnesses TAYLOR E. BROWN, ALBERT H. GRAVES. 

